Means for automatically changing shuttles in looms.



No. 713,702. Patented Nm/ la. 9902..

A. SMITH as. JACKSON. `MEANS FOR AUTUMATICALLY CHANGING SHUTTLES IN LOOMS.

(Application filed May 10, 1901.)

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No. 7I3,702.

A. SMITH & S. JACKSON. MEANS FGR AUTOMATIGALLY CHANGING SHUTTLES IN LUOMS.

(Application led May 10, 1901.)

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Patented Nov. I8, i902.l

A. SMITH & s. JAcKsoN. MEANS FOR AUTOMATICALLY CHANGING SHUTTL'ES IN LOOMS.

(Application filed May 10, 1901.)

5 Sheets--Sheet 3.

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No. 713,702. Patented Nov. I8, |902.

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No. 713,702. Patented' Nov. la, |902. A. SMITH & s. JAcKsoN; MEANS FDR AUTOMATICALLY CHANGING SHUTTLES IN LOUMS.

(Application med May 10, 19401.) (nu Model.) 5 sheefs-shm s.

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ALFRED SMITH AND SIMEON JACKSON, OF KEIGHLEY, ENGLAND.

SPECIFICATION forming part of Letters Patent No. 713,702, dated November 18, 1902.

Application iiled May IO. 1901.

T0 @ZZ wtom it may concern:

Be it known that we, ALFRED SMITH and SIMEON JACKSON, subjects of the King of Great Britain, residing at Keighley, in the county of York, England, have invented certain new and useful Improvements in Means for Automatically Changing Shuttles in Looms on Failure of Veft, of which the following is a specification.

This invention relates to the class of loom in which when the weftA fails or breaks the shuttle is automatically replaced by one from' a magazine. This magazine is suitably7 placed at the front of the loom and is prepared to rcceive a number of shuttles containing cops or bobbins to be used in weaving.

Our invention consists of the application of an automatic motion which works in combination with all the movements comprised in the replacement of the shuttle; also, in connection with the weft-fork and the driving motion.

In the drawings, Figure l is an end view of a portion of a loom, showing the magazine. Fig. 2 is a front view of the same. Fig. 3 is an end view of a portion of the loom looking in the reverse direction from that shown in Fig. l. Fig. a is a front view of the parts shown in Fig. 3. Figs. 5 and 6 are plan views of the parts shown in Fig. 4, showing said parts when the loom is at rest and in operation, respectively. Fig. 7 is a plan view of the parts shown in Figs. l and 2. Fig. 8 is a sectional View of the clutch mechanism. Fig. 9 is a detail side View of the tappets. Fig. IO is a side view of the clutch mechanism. Figs. Il and l2 are end views showing the mechanism for reversing the dobby-cylinder.

In this our invention the sides ct l), rail c, shafts (Z e, and stand f may be of any ordinary construction. The magazine g, (see Fig. 7,) receiving the full shuttles 7L, is arranged as follows: One part, consisting of the four sides z', is rigidly connected by bracketyto the rail c of the loom. The other part, forming the bottom 7c of the magazine, is attached to the swing-arm Z. In the projections 7n n o p we mount loosely two parallel rods q r. To the rod r are connected the fingers s t, and to the rod q are connected two rods u o, and to these latter is connected the plate w. The

two rods u and o receive two screws my, which Serial No. 59,563. (No model.)

are in contact with the bottom 7c when the latter is at its normal or back position. Also a spring ,e (see Fig. l) is attached to the rod q, and the ngers s and t being connected by rod l work in unison with the rods u and fu. Thus when the loom is in operation the shuttles are as shown in Fig. l-that is, one is resting at the bottom of the magazine and the others are supported by the fingers s and t. /Vhen a change of shuttle is being made and the bottom k moves forward, as hereinafter explained, the lingers s and t and rods u and v take up the positions shown in dotted center lines 8 9, and the shuttles h are free to drop on plate w, which then acts as the bottoni for the magazine, and as the bottom 7c moves backward to take up its normal position it comes in contact with the screws x y, and thus the Iingers s and t, rods u and o, plate w, and shuttles h again take up the positions shown in Fig. 1.

The swing-arm Z fulcrums on the stud 2 and receives its motion by means of bowl IO, lever 3, rod 4, lever 5, and spring 6 from the tappet '7. The swing-arm Z when operated traverses to and from the slay-board, and if its full traverse be not required the spring 6 yields, and thus prevents breakage.

The swell or sweller is formed of two parts ll and I2. The part ll fulcrums on the stud 13 and forms the back of the sweller, and the part 12 fulcrums on the pin 14 and forms the front of the sweller. A pin l5 is attached to the part l2 and projects through the part Il, and a spring I6 is applied to this pin l5. Then a change of shuttle takes place, the pin l5, and with it the part l2 of the sweller, is pushed forward by the tappet 17, which works in connection with same by means of the bowl 18,1ever 19, rod 20, and lever 2l, and thus the spent shuttle is ejected from the slay-board. When the loom is in operation, the parts Il and l2 work together as an ordinary sweller.

The box-front 22 is connected by studs 23 and 24 to a cross-head 26, and the studs 23 and 24: pass through sockets 33 and 28, which form part of the box-bottom 29. The crosshead 26 is operated vertically by the tappet 27 being brought into connection with same by the bowl 30, lever 31, and rod 32. The normal position of the box-front-that is,wl1en IOO vWhen the change-motion is in operation, the

box-front 22 is raised by the tappet 27 in order that the spent shuttle may be ejected and replaced by one from the magazine.

The handle 34 has two positions, as is well understood. Fig. 6 represents its position when the loom is in operation, and Figs. 4 and 5 show its position when the loom is at rest. The position of the driving-belt is determined by the handle 34, being connected With same by rod 42 and any other suitable mechanism. (Not shown.) When in contact with the fast pulley 35, it imparts motion to the loom, and When in contact with the loose pulley 36 the loom is at rest and the changemotion may be operated from same, as hereinafter explained. The construction of the handle 34 is well understood-that is, as regards the manner of retaining same in its operative position-also its spring, which tends to force it into its non-operative position. The handle 34 is brought into contact with the tappet 38 by means of the bowl 39 and levers 40 41, these two levers being rigidly mounted on shaft 49. The lever 4l, being connected by rod 44, raises the lever 45, and this latter by its projecting stud 46 pushes back the handle 34 into its operative position. Thus if by reason of the weft having failed the handle 34 is released the belt is thrown onto the loose pulley 36, the loom is thus brought to rest, and the automatic motion is put into operation, when the tappet 38 as already described changes the position of the handle 34 and the loom is again put into operation.

The lever has a projection 47, and an ordinary weight or spring for the brake of the -loom (not shown) is attached at the point 48.

The handle 34 holds the lever 45 in its raised position by the said projection 47, and when released the lever 45 is also free to drop.

Our arrangement for connecting the weftfork 50 to the automatic motion is as follows: It is secured to the lever 51 in the ordinary manner, and on the latter We mount a movable plate 52, having a stud 53, to which is secured the spring 54. This plate 52 has two slots 55 and 56, through which pass the two studs 57 and 58. In this manner the plat-e is free to slide on the said `studs 57 and 58 and is also held in position. When the loom is in operation, the nose 59 is, as shown in Fig. 6, in contact with the finger 60, and when the loom is in its non-operative position and the change motion, as hereinafter explained, is in operation it is clear of same, as shown in Fig. 5. Thus when the weft has failed and the lever 5l (and with it the nose 59 of plate 52) is being pushed by the well-known lever and eccentric arrangement to its back position, as shown by the dotted lines in Fig. 6, the nose 59 pushes back the finger 60. The lever 5l and handle 34 are in contact. Thus when the lever 51 reaches its back position the handle 34 is released from its point of re tention and moves from the position shown in Fig. 6 to the position in Fig. 5, and, as already explained, the lever 45 is free to drop and the projection 47 of the latter comes in contact with the stud 53, thus carrying the nose 59 clear of the finger 60, which then again takes up its forward position. When the loom` is restarted, the lever 45 is raised, as before explained, and the projection 47 is clear of the stud 53 when by aid of the spring 54 it takes up the position shown in Fig. 6.

Our arrangement of the changemotion mechanism is as follows: We mount a pinionwheel 61 (see Figs. 2 and 1) on the crankshaft d of the loom, this pinion-wheel forming part of and revolving with the loose pulley 36. This pinion-wheel 61 transmits the motion by means of the intermediate wheel 62 to the wheel 63, and this latter has a concentric ring supplied With radial indents 65 and rotates looselyT on the boss 66. The boss 66 is mounted loosely on the low shaft e and has a plate 67 attached to same, this plate being adapted to receive the spring 68 and stud 69. On the boss 66 is fitted loosely the piece 70, having a slot 71 and nose 72, this piece 70 being movable on the boss 66 and being connected by stud 73 to the lever 74. The lever 74 is mounted loosely on the stud 69, and the spring 68 is applied to same. It also receives the stud 75. The stud 75 Works in unison with the finger by means of the lever 76, loosely fulcrumed on the stud 77, rod 78, lever 79, and shaft 80. Thus when the loom is in operation the finger 60 is at its forward position and the lever 76 is in contact with the stud 75, thus keeping the nose 72 clear of the indents 65. When the weft has failed and a change of shuttle takes place, the finger 60 is pushed back, as already explained, and the lever 76 is raised clear of the stud 75, when the nose 72 is forced into contact with an indent of the wheel 63, and thus the boss 66 rotates with the latter.

The before-mentioned tappets 7, 17, 27, and 38 (see Fig. 9) are rigidly mounted on the boss 66 and rotate with same, operating the levers 3, 19, 31, and 40, with which they are held in contact by the springs 81 for the purposes already described. These tappets are so arranged that all the dierent movements are made during one revolution of the wheel 63, the wheels 61 and 63 being made to any required ratio.

By our combination in the manner shown of the plate 52 and nose 59 with the linger 60 and lever 76 the latter is only raised for a sufficient time to allow the stud 75 to pass clear of same, when it then takes up its former position.

We connect the automatic motion to the card-cylinder of the dobby, as shown by Figs. 3, 11, and 12, Fig. 1l being a front View and Fig. 12 a back view, as follows: A rod 83 connects the lever 41 to the lever 84, which is secured to the shaft 85 and carries the catch 86. The shaft 85 extends through the dobby,

IIO

and a finger 87 is connected to same. Thus when the lever 41, as before explained, is operated the catch 86 turns back the cylinder 88 by its catch-wheel 89 a distance equal to one lag or two picks, and at the same time the finger 87 raises the ordinary pushingcatch 90 clear of the catch-Wheel 9i. The catch 86 is formed so that when the cylinder 88 is being turned forward in the ordinary wayitis in an inoperative position. By this arrangement when the weft fails and the loom is stopped the card-cylinder 88 is reversed a space equal to two picks, thus preventing a faulty place being made in the cloth.

From the foregoing it will be seen that when the weft fails the clutch or change mechanism is put into operation, thus raising the box-front, ejecting the spent shuttle, placing a full shuttle in the shuttle-box of the slay-board, and restarting the loom, and that during the time these movements are taking place all the primary motions of the loom are at rest.

IVhat We claim as our invention, and desire to secure by Letters Patent, is-

l. In a loom, the combination, with a stationary magazine for the shuttles, of a pivoted feed-arm provided with a feed-plate 7o which normally supports a shuttle under the magazine, rods r and q journaled on opposite sides of the magazine, iingers s and t secured on the rod r and supporting the shuttles in the magazine, rods Lt and t* secured on the rod q, a bottom plate u secured to the rods u and n, a connecting-rod pivoted to the nger S and rod u, screws and y engaging with the rods u and fn and bearing against the plate 7c, and a spring z which retracts the said fingers and moves the bottom plate w under the magazine when the feed-plate is moved from its normal position, substantially as set forth.

2. In a loom, the combination, with the shuttle-box, of the swell formed of two overlapping parts 11 and 12 having their opposite ends pivoted to the back of the shuttle-box, a pin 15 carried by the front part l2 of the swell and projecting through the back part 1l, a spring 16 on the said pin and holding the said parts in contact, and tappet mechanism Which strikes the head of the said pin 15 when a change of shuttle takes place, substantially as set forth.

3. In a loom, the combination, with the handle 34 for operating the belt-shifting mechanism, said handle being provided with a spring which normally holds it in a non-operative position, of a revoluble tappet 38, a shaft 49 and levers and 41 secured on it, a roller 39 carried by lever 40 and operated by the said tappeti, a pivoted lever provided With a stud 4G for pushing back the handle to its operative position, and a connecting-rod 44 pivoted to the levers 45 and 41, substantially as set forth.

4. In a loom, the combination, with the pivoted weft-fork lever 51, and the weft-fork carried by it; of studs 57 and 58 projecting from the said lever 51; a plate 52 having a stud 53, slots which slide over the studs 57 and 58, and a projecting nose 59; a spring 54 for moving the plate 52 longitudinally in one direction, change-motion mechanism, a iinger 60 connected with the change motion mechanism and arranged in the path of the said nose 59, and a handle 34 for operating the belt-shifting mechanism arranged in operative connection with the said lever 51, substantially as set forth.

In testimony whereof We hereunto affix our signatures in the presence of two Witnesses.

ALFRED SMITH. SIMEON J AGKSON. Vitnesses:

I. N. CLARKsoN, Trios. WHITAKER. 

